address - Address
block - Block reference
center - centered aligned blocks (not recommended)
dir - Directory list (HTML5 kicks out)
div - Commonly used can no longer be used
dl - List
fieldset - a box containing a form group
form - A list was presented
h1 ~ h6 Various size titles
hr - Horizontal Divider (not recommended)
menu - Menu List
noframes - The browser does not support frames display blocks
noscript - The browser does not support script display blocks
ol - Ordered List
ul - Unordered List
p - paragraph
pre - Format text
Table - Table
a - anchor point
abbr - abbreviation (semantics, favorable to search engines)
acronym - First word (HTML5 kicked out)
b - Bold (not recommended)
big - Large font (not recommended)
cite - Quotation (semantics, favorable to search engines)
code - reference source code (semantics)
em - emphasize (if only for italics please use <i>)
font - Font settings (not recommended)
i - Italic
img - Picture
input - input box
label - form tag (event association corresponding form items)
q - Short quotations (standard add quotations, IE does not add quotations)
s - Medium marking (not recommended)
samp - for extracting content
select - Project selection
small - Small font (not recommended)
strong - bold (not recommended)
sub - Subscript
sup - superscript
textarea - Multi-line text input box
u - Underline
var - define variables